(a)
Interpretation: Group 1A (1) elements show unique
Concept Introduction: The transformation of reactant molecules into product molecules is represented by a chemical reaction. It entails the forming and breaking of
A chemical equation can be used to represent the chemical reaction. It involves the single-headed arrows used to depict the conversion in the chemical formulas of the reactant and product molecules.
(b)
Interpretation: Marble statuary is destructed by acid rain. The balance chemical equation of calcium carbonate with aqueous nitric acid to form carbon dioxide, water, and aqueous calcium nitrate is to be interpreted.
Concept Introduction: The transformation of reactant molecules into product molecules is represented by a chemical reaction. It entails the forming and breaking of chemical compound bonds.
A chemical equation can be used to represent the chemical reaction. It involves the single-headed arrows used to depict the conversion in the chemical formulas of the reactant and product molecules.
(c)
Interpretation: Phosphorus trifluoride can be formed by the reaction of phosphorus trichloride and hydrogen fluoride with hydrogen chloride as the side product. The balance chemical equation is to be interpreted.
Concept Introduction: The transformation of reactant molecules into product molecules is represented by a chemical reaction. It entails the forming and breaking of chemical compound bonds.
A chemical equation can be used to represent the chemical reaction. It involves the single-headed arrows used to depict the conversion in the chemical formulas of the reactant and product molecules.
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CHEMISTRY:MOLECULAR...(LL) W/ALEKS
- Write the chemical formula for tellurium diiodidearrow_forwardGive detailed Solution with explanation neededarrow_forwardWhich of the following properties is NOT a characteristic of the Group 1A(1) elements They are shiny They are good conductors of heat. They react vigorously with water. Most of them are liquids at room temperature.arrow_forward
- Write the chemical formula for tellurium hexaiodidearrow_forward(a) (i) (ii) (iii) With the aid of a simple schematic, explain what covalent bonding is and how it is formed. What are the differences between a covalent bond and an ionic bond? Which type of bond is found in crystalline silicon? At room temperature do you expect an ionic crystal to be a good electrical conductor or a good electrical insulator? Explain why.arrow_forward4. The common oxidation number for an alkaline earth metal is +2. (a) Using the Born-Mayer equation (for determining the lattice enthalpy) and a Born-Haber cycle (draw it), show that CaCl is an exothermic compound (negative AHf). Make a reasonable prediction to estimate the ionic radius of Ca (explain your reasoning). The sublimation (atomization) enthalpy for Ca(s) is 178 kJ/mol. (b) Show that an explanation for the non-existence of CaCl can be found in the enthalpy change for the reaction below. The AHf for CaCl2(s) is -190.2 kcal/mol. 2 CaCl(s) → Ca(s) + CaCl2(s)arrow_forward
- The naturally occurring precursor to other strontium compounds [strontium carbonate] is produced by a precipitation reaction. Write an equation in which strontium carbonate is produced from strontium nitrate and potassium carbonate.arrow_forwardThe first two steps in the industrial synthesis of nitric acid produce nitrogen dioxide from ammonia: 4 NH; (g) + 5 0, (g) = 4 NO (g) + 6 H,0 (g) K1 2 NO (3) +0, (g) = 2NO, (g) K2 The net reaction is: 4 NH; (g) + 70, (g) = 4 NO, (g) + 6 H,0 (g) K Write an equation that gives the overall equilibrium constant K in terms of the equilibrium constants K, and K,. If you need to include any physical constants, be sure you use their standard symbols, which you'll find in the ALEKS Calculator. K = oloarrow_forwardSodium hydrogen sulfate is used as a cleaning agent and as a flux (a substancethat promotes the fusing of metals and prevents the formation of oxides). Oneof the ways in which sodium hydrogen sulfate is manufactured is by reactingsodium dichromate, Na2Cr2O7, with sulfuric acid. This process also forms waterand chromium(VI) oxide, CrO3.a. Write a balanced equation for this reaction. (You do not need to includestates.)b. How many kilograms of sodium dichromate, Na2Cr2O7, are necessary toproduce 130.4 kg of sodium hydrogen sulfate?c. How many kilograms of chromium(VI) oxide are formed when 130.4 kg ofsodium hydrogen sulfate is made?d. What is the minimum volume of 18.0 M H2SO4 solution necessary toreact with 874.0 kg of sodium dichromate?e. What is the maximum mass of sodium hydrogen sulfate, NaHSO4, thatcan be formed from the reaction of 874.0 kg of sodium dichromate with400.0 L of 18.0 M H2SO4?arrow_forward
- How many electrons does a halogen atom need to complete its octet? Give examples of the ways a Cl atom can do so.arrow_forwardCarbon is used in countless ways in a modern automobile, with the most visible use being carbon fiber, which is utilized for everything from decoration to vehicle frames and body panels. What properties of carbon (C) allow for the formation of carbon fiber which is a polymer (made of very thin strands of the element carbon)? Explain by referring to the atomic structure of carbon. Compare between carbon fiber and iron (Fe) in terms of durability and performance.arrow_forwardOver coffee and croissants at breakfast one day, your friend Lena (an expert chemist) says this: "Group 1A metal hydrides react with water to produce hydroxides and hydrogen gas." Using Lena's statement, and what you already know about chemistry, predict the products of the following reaction. Be sure your chemical equation is balanced! NaH(s) + H2O(l) ->arrow_forward
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